Analysis of the efficacy of Viabahn covered stents and bare metal stents in treatment of femoral and popliteal arteriosclerosis

doi:10.3969/j.issn.1674-3806.2019.02.12

Abstract：Objective To analyze the clinical effects of Viabahn covered stents and bare metal stents in treatment of femoral and popliteal arteriosclerosis. Methods The clinical data of 75 patients ( 75 limbs) with femoral and popliteal arteriosclerosis obliterans receiving endovascular surgery from January 2016 to January 2017 were retrospectively analyzed. There were 35 patients in the Viabahn covered stents group and 40 in the bare metal stents group. The condition of vascular recanalization was compared between the two groups and the factors which affected the primary patency rate were also analyzed. Results All the patients ( 75 limbs in 75 cases) were operated successfully. The follow-up time was 24 months. In the Viabahn covered stents group, the primary patency rates were97. 14％, 91. 43％, 80. 00％ and 68. 57％ 3, 6, 12 and 24 months after surgery, and the secondary patency rates were 100. 00％, 97. 14％, 91. 43％ and 85. 71％ respectively. In the bare metal stents group, the primary patency rates were 90. 00％, 75. 00％, 52. 50％ and 42. 50％ 3, 6, 12 and 24 months after surgery, and the secondary patency rates was 97. 50％, 92. 50％, 87. 50％ and 80. 00％ respectively. Log-rank test showed that there were a significant differences in the primary patency rates between the two groups ( χ2= 5. 318, P = 0. 021), but there were no significant difference in the secondary patency rates ( χ2= 0. 536, P = 0. 464). Smoking, hyperlipidemia and diabetes were the independent risk factors of primary patency rates ( P = 0. 007, 0. 003, 0. 063). Conclusion Viabahn covered stent is more effective than bare metal stent in the treatment of femoral popliteal arteriosclerosis.